diff options
Diffstat (limited to 'test/ruby/test_gc.rb')
| -rw-r--r-- | test/ruby/test_gc.rb | 33 |
1 files changed, 9 insertions, 24 deletions
diff --git a/test/ruby/test_gc.rb b/test/ruby/test_gc.rb index 6639013a54..594e2b8aa8 100644 --- a/test/ruby/test_gc.rb +++ b/test/ruby/test_gc.rb @@ -382,51 +382,36 @@ class TestGc < Test::Unit::TestCase def test_latest_gc_info_weak_references_count assert_separately([], __FILE__, __LINE__, <<~RUBY) GC.disable - count = 10_000 + COUNT = 10_000 # Some weak references may be created, so allow some margin of error error_tolerance = 100 - # Run full GC to clear out weak references - GC.start - # Run full GC again to collect stats about weak references + # Run full GC to collect stats about weak references GC.start before_weak_references_count = GC.latest_gc_info(:weak_references_count) - before_retained_weak_references_count = GC.latest_gc_info(:retained_weak_references_count) - # Create some objects and place it in a WeakMap - wmap = ObjectSpace::WeakMap.new - ary = Array.new(count) do |i| - obj = Object.new - wmap[obj] = nil - obj + # Create some WeakMaps + ary = Array.new(COUNT) + COUNT.times.with_index do |i| + ary[i] = ObjectSpace::WeakMap.new end # Run full GC to collect stats about weak references GC.start - assert_operator(GC.latest_gc_info(:weak_references_count), :>=, before_weak_references_count + count - error_tolerance) - assert_operator(GC.latest_gc_info(:retained_weak_references_count), :>=, before_retained_weak_references_count + count - error_tolerance) - assert_operator(GC.latest_gc_info(:retained_weak_references_count), :<=, GC.latest_gc_info(:weak_references_count)) + assert_operator(GC.latest_gc_info(:weak_references_count), :>=, before_weak_references_count + COUNT - error_tolerance) before_weak_references_count = GC.latest_gc_info(:weak_references_count) - before_retained_weak_references_count = GC.latest_gc_info(:retained_weak_references_count) # Clear ary, so if ary itself is somewhere on the stack, it won't hold all references ary.clear ary = nil - # Free ary, which should empty out the wmap + # Free ary, which should GC all the WeakMaps GC.start - # Run full GC again to collect stats about weak references - GC.start - - # Sometimes the WeakMap has a few elements, which might be held on by registers. - assert_operator(wmap.size, :<=, count / 1000) - assert_operator(GC.latest_gc_info(:weak_references_count), :<=, before_weak_references_count - count + error_tolerance) - assert_operator(GC.latest_gc_info(:retained_weak_references_count), :<=, before_retained_weak_references_count - count + error_tolerance) - assert_operator(GC.latest_gc_info(:retained_weak_references_count), :<=, GC.latest_gc_info(:weak_references_count)) + assert_operator(GC.latest_gc_info(:weak_references_count), :<=, before_weak_references_count - COUNT + error_tolerance) RUBY end |